EP 0847101 A2 19980610 - Antenna mutual coupling neutralizer
Title (en)
Antenna mutual coupling neutralizer
Title (de)
Neutralisation von gegenseitiger Antennenkopplung
Title (fr)
Neutralisation de couplage d'antennes mutuel
Publication
Application
Priority
US 76113096 A 19961206
Abstract (en)
A mutual coupling neutralizer for neutralizing adverse mutual coupling between a pair of patch antennas for mobile communication system. The coupling neutralizer includes a first and second capacitor each having a first end and a second end, where the first ends are coupled to a respective patch antenna. The neutralizer further includes a high impedance transmission line connected to the second ends of the capacitors. The transmission line and capacitors are sized and configured to neutralize adverse mutual coupling between the pair of patch antennas over a predetermined frequency band. The neutralization of mutual coupling is achieved by extracting a signal present at one patch antenna and injecting the signal at the other patch antenna at a substantially equal amplitude and opposite in phase. <IMAGE>
IPC 1-7
IPC 8 full level
H01Q 1/52 (2006.01); H01Q 13/08 (2006.01); H01Q 21/08 (2006.01)
CPC (source: EP US)
H01Q 1/52 (2013.01 - EP US); H01Q 1/521 (2013.01 - EP US); H01Q 1/523 (2013.01 - EP US); H01Q 1/525 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0847101 A2 19980610; EP 0847101 A3 20000628; AR 008926 A1 20000223; AU 4691797 A 19980611; AU 724045 B2 20000907; BR 9706130 A 19990330; JP H10178314 A 19980630; KR 19980063815 A 19981007; US 5892482 A 19990406
DOCDB simple family (application)
EP 97250307 A 19971017; AR P970105734 A 19971205; AU 4691797 A 19971205; BR 9706130 A 19971203; JP 35199097 A 19971208; KR 19970066118 A 19971205; US 76113096 A 19961206